Defensive publication

ABSTRACT

A POLYMER IS PROVIDED HAVING RECURRING UNITS OF THE FORMULA   -(1,4-NAPHTHYLENE)-O-E-(1,4-NAPHTHYLENE)-   WHERE IS PREFERABLY A DIRECT LINK OR MAY BE A GROUP HAVING THE FORMULA -X-O- WHERE X IS A KETONE OR DIVALENT POLYMETHYLENE GROUP.

DEFENSIVE PUBLICATION UNITED STATES PATENT AND TRADEMARK OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. 'lhe files of these applications are available to the public for inspection and reproduction may he purchased for 30 cents a sheet.

Defensive Publication applications.have not been examined as to the merits of alleged invention. The Patent and Trademark Office makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED MARCH 4, 1975 T932,004 AROMATIC POLYCARBONATES Ronald George Feasey, Knebworth, and John Leslie Freeman, Huntingdon, England, assignors to Imperial Chemical Industries Limited, London, England Continuation-impart of application Ser. No. 252,555, May 12, 1972. This application Dec. 17, 1973, Ser. No. 425,282

Int. Cl. C08g 17/13 US. Cl. 260-47 XA No Drawing. 12 Pages Specification A polymer is provided having recurring units of the forwhere E is preferably a direct link or may be a group having the formula X-O- where X is a ketone or divalent polymethylene group. 

